(19)
(11) EP 0 537 858 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.02.1994 Bulletin 1994/07

(43) Date of publication A2:
21.04.1993 Bulletin 1993/16

(21) Application number: 92203168.7

(22) Date of filing: 15.10.1992
(51) International Patent Classification (IPC)5C07F 7/18
(84) Designated Contracting States:
BE DE FR GB IT NL

(30) Priority: 16.10.1991 JP 294910/91
30.10.1991 JP 310015/91
28.02.1992 JP 75898/92
09.03.1992 JP 84968/92

(71) Applicant: Tonen Corporation
Tokyo (JP)

(72) Inventors:
  • Aoki, Tomoko
    Iruma-gun, Saitama-ken (JP)
  • Imanishi, Kunihiko
    Iruma-gun, Saitama-ken (JP)
  • Sato, Ryuji
    Iruma-gun, Saitama-ken (JP)
  • Ueki, Satoshi
    Shiki-shi, Saitama-ken (JP)
  • Okumura, Yoshiharu
    Tokyo (JP)
  • Kohara, Tadanao
    Urawa-shi, Saitama-ken (JP)

(74) Representative: Smulders, Theodorus A.H.J., Ir. 
Vereenigde Octrooibureaux Nieuwe Parklaan 97
2587 BN 's-Gravenhage
2587 BN 's-Gravenhage (NL)


(56) References cited: : 
   
       


    (54) Silane compound and processes for the preparation thereof


    (57) Novel silane compound, alkoxy cyclopentyl dimethoxysilane, is prepared by reacting cyclopentyl trihalosilane with ROH and then with methanol, or by reacting cyclopentyl trimethoxysilane with ROH, wherein alkyl in the alkoxy or R in ROH stands for an organic group selected from the group consisting of sec-butyl, tert-amyl, cyclopentyl, oxa-3-cyclopentyl, cyclohexyl and 2-isopropyl-5-methyl cyclohexyl groups. The silane compounds are useful as a catalytic component for olefin polymerization and as a silane coupling agent.





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